1 files changed, 45 insertions, 0 deletions
diff --git a/docs/teaching/exercises/support/Log.java b/docs/teaching/exercises/support/Log.java
new file mode 100644
index 000000000..37d4d7ad2
--- /dev/null
+++ b/docs/teaching/exercises/support/Log.java
@@ -0,0 +1,45 @@
+/* *******************************************************************
+ * Copyright (c) 2002 Palo Alto Research Center, Incorporated (PARC).
+ * All rights reserved. 
+ * This program and the accompanying materials are made available 
+ * under the terms of the Common Public License v1.0 
+ * which accompanies this distribution and is available at 
+ * http://www.eclipse.org/legal/cpl-v10.html 
+ *  
+ * Contributors: 
+ *     PARC     initial implementation 
+ * ******************************************************************/
+
+
+package support;
+
+public class Log {
+    static StringBuffer data = new StringBuffer();
+
+    public static void traceObject(Object o) {
+        throw new UnsupportedOperationException();
+    }
+
+    public static void log(String s) {
+        data.append(s);
+        data.append(';');
+    }
+
+    public static void logClassName(Class _class) {
+        String name = _class.getName();
+        int dot = name.lastIndexOf('.');
+        if (dot == -1) {
+            log(name);
+        } else {
+            log(name.substring(dot+1, name.length()));
+        }
+    }
+
+    public static String getString() {
+        return data.toString();
+    }
+
+    public static void clear() {
+        data.setLength(0);
+    }
+}